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132 lines
3.2 KiB
132 lines
3.2 KiB
/*
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* Copyright (C) 2016 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include <sys/time.h>
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#include <chrono>
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#include <functional>
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#include <ScopedDisableMalloc.h>
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#include <gtest/gtest.h>
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using namespace std::chrono_literals;
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namespace android {
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class DisableMallocTest : public ::testing::Test {
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protected:
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void alarm(std::chrono::microseconds us) {
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std::chrono::seconds s = std::chrono::duration_cast<std::chrono::seconds>(us);
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itimerval t = itimerval();
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t.it_value.tv_sec = s.count();
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t.it_value.tv_usec = (us - s).count();
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setitimer(ITIMER_REAL, &t, NULL);
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}
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};
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TEST_F(DisableMallocTest, reenable) {
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ASSERT_EXIT(
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{
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alarm(100ms);
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void* ptr1 = malloc(128);
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ASSERT_NE(ptr1, nullptr);
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free(ptr1);
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{ ScopedDisableMalloc disable_malloc; }
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void* ptr2 = malloc(128);
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ASSERT_NE(ptr2, nullptr);
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free(ptr2);
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_exit(1);
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},
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::testing::ExitedWithCode(1), "");
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}
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TEST_F(DisableMallocTest, deadlock_allocate) {
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ASSERT_DEATH(
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{
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void* ptr = malloc(128);
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ASSERT_NE(ptr, nullptr);
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free(ptr);
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{
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alarm(100ms);
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ScopedDisableMalloc disable_malloc;
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void* ptr = malloc(128);
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ASSERT_NE(ptr, nullptr);
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free(ptr);
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}
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},
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"");
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}
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TEST_F(DisableMallocTest, deadlock_new) {
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ASSERT_DEATH(
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{
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// C++ allows `new Foo` to be replaced with a stack allocation or merged
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// with future `new Foo` expressions, provided certain conditions are
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// met [expr.new/10]. None of this applies to `operator new(size_t)`.
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void* ptr = ::operator new(1);
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ASSERT_NE(ptr, nullptr);
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::operator delete(ptr);
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{
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alarm(100ms);
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ScopedDisableMalloc disable_malloc;
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void* ptr = ::operator new(1);
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ASSERT_NE(ptr, nullptr);
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::operator delete(ptr);
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}
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},
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"");
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}
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TEST_F(DisableMallocTest, deadlock_delete) {
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ASSERT_DEATH(
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{
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void* ptr = ::operator new(1);
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ASSERT_NE(ptr, nullptr);
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{
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alarm(250ms);
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ScopedDisableMalloc disable_malloc;
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::operator delete(ptr);
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}
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},
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"");
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}
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TEST_F(DisableMallocTest, deadlock_free) {
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ASSERT_DEATH(
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{
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void* ptr = malloc(128);
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ASSERT_NE(ptr, nullptr);
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{
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alarm(100ms);
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ScopedDisableMalloc disable_malloc;
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free(ptr);
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}
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},
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"");
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}
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TEST_F(DisableMallocTest, deadlock_fork) {
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ASSERT_DEATH({
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{
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alarm(100ms);
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ScopedDisableMalloc disable_malloc;
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fork();
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}
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}, "");
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}
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} // namespace android
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